Swing exerciser



FIG. 1 is a perspective view of the swing exerciser showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof, with the right side view being a mirror image thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines in the figures depict portions of the swing exerciser that form no part of the claimed design. 

I claim the ornamental design for a swing exerciser, as shown and described. 